Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car



Audi 80/90/Coupe
+ 1.2. Identification of the car
+ 2. Engines, carburetors
3. Lubrication system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. System of ignition
+ 8. Transmission
- 9. Suspension brackets, wheels
   9.1.1. Elimination of resonance / vibration of a cross-piece (4-cylinder models)
   9.1.2. Change of a design of a forward suspension bracket
   9.1.3. Half shaft
   9.1.4. Suspension bracket rack
   9.1.5. CV JOINTS
   9.1.6. Suspension bracket rack (all-wheel drive models)
   9.1.7. CV JOINTS (all-wheel drive models)
   + 9.2. Back suspension bracket
   - 9.3. Wheels and tires
      9.3.2. Disorder / convergence of wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Air conditioning system
+ 14. Electric equipment






9.3.2. Disorder / convergence of wheels

GENERAL INFORMATION

Adjustment of installation of wheels

It is recommended to carry out an inspection of adjustment of wheels after at least 1000-1200 km of a run when springs of a suspension bracket managed to enter a normal operating mode.

It is necessary for check:

      – exact adjustment of the measuring equipment;
      – that the mass of the car when conducting check equaled only to its own weight with the filled tank and the installed equipment;
      – that pressure in tires equaled to standard;
      – that the car was located on a plain surface, also before conducting check the car needs to be rocked several times to establish a suspension bracket;
      – that there was no excessive free wheeling in the steering mechanism;
      – check a suspension bracket for existence of an excessive free wheeling and damages.

Cars with the forward drive

Forward wheels
Nominal rates
Convergence of forward wheels (pressure is not put upon wheels)
+10' ± 10'
Disorder of forward wheels
wheels stand directly
- 45' ± 30'
the maximum admissible distinction between the left and right wheel
30'
difference in convergence coal between the left and right wheels
- 55' ± 30'
Corner of a longitudinal inclination шкворня
it is not regulated
+1 °15' ± 30'
the maximum admissible distinction between the left and right wheel
30'

Back wheels
Nominal rates
Disorder of back wheels
it is not regulated
- 1' ± 20'
the maximum admissible distinction between the left and right wheel
30'
Convergence of back wheels
it is not regulated
+20' ± 20'
the maximum admissible distinction between the left and right wheel
25'

Cars with the four-wheel drive, and also with 20 valvate engines

Forward wheels
Sedan
Compartment
Convergence of forward wheels (pressure is not put upon wheels)
+10' ± 10'
+10' ± 10'
Disorder of forward wheels
wheels stand directly
- 50' ± 30'
- 50' ± 30'
the maximum admissible distinction between the left and right wheel
30'
30'
Difference in convergence coal between the left and right wheels at turn of wheels on 20 °
- 1 '±30'
- 1 '±30'
Corner of a longitudinal inclination шкворня
it is not regulated
+1 °25' ± 30'
+2 °15' ± 30'
the maximum admissible distinction between the left and right wheel
30'
30'

Back wheels
Sedan
Compartment
Disorder of back wheels
- 45' ± 30'
- 45' ± 30'
The maximum admissible distinction between the left and right wheel
30'
30'
Convergence of back wheels
+20' ± 10'
+20' ± 10'
Convergence corner on one wheel
+10' ± 5'
+10' ± 5'

Definition / adjustment of a corner of a convergence of back wheels (for cars with the forward drive)

1. If a corner of a convergence of both wheels positive +/+) or negative (-/-), subtract smaller value from bigger and divide on 2.

2. If a corner of a convergence of one wheel positive, and the second negative (+/-), put both values and divide on 2.

Disorder of forward wheels, adjustment (for cars with the spherical hinges of a forward suspension bracket fastening in 2 points)

PERFORMANCE ORDER
1) weaken both nuts of fastening of the spherical hinge to the suspension bracket lever (are specified by shooters)
2) move the spherical hinge by means of the lever and adjust a corner of disorder of forward wheels
3) tighten fastening nuts to 65 N. of m.
4) repeatedly check a corner of disorder of wheels and adjust it if it is necessary
5) check a corner of a convergence of wheels, adjust it if it is necessary